Welcome to Lucky company' website. We are manufacturer & supplier specializing in the production of precision Rubber Belts, Round Rubber Belts, Rubber Drive Belts, Rubber O-Rings, Rubber Seals, Rubber Balls, Plastic Hollow Balls, Plastic Balls.

The Main Parameters Of Rubber O-Rings Size

The main parameters of rubber o-rings size are mainly divided into 3 parts, outer diameter, inner diameter and diameter of section.

1. outer diameter

The outer diameter of O rings is also called OD.

2. inner diameter

The inner diameter of O rings is also called ID.

3. diameter of section

The diameter of section of O rings is also called CS.

Usually, our engineering drawings only wrote inner diameter and diameter of section. For example, if the o ring inner diameter is 20mm and diameter of section is 1mm, then its outer diameter is 22mm.

The main parameters of rubber o-rings size test standards

Usually, we are mainly inspect the o-rings inner diameter and diameter of section. For example, test a small O-ring, inner diameter standard tolerance is +/- 0.12mm, diameter of section standard tolerance is +/- 0.08mm. So, testing standards will vary with the size of the O-ring.

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